--- loncom/interface/lonmenu.pm 2003/02/14 21:22:04 1.39
+++ loncom/interface/lonmenu.pm 2017/12/22 02:00:46 1.485
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Routines to control the menu
#
-# $Id: lonmenu.pm,v 1.39 2003/02/14 21:22:04 www Exp $
+# $Id: lonmenu.pm,v 1.485 2017/12/22 02:00:46 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,558 +25,2823 @@
#
# http://www.lon-capa.org/
#
-# (TeX Conversion Module
#
-# 05/29/00,05/30 Gerd Kortemeyer)
-#
-# 10/05,05/28,05/30,06/01,06/08,06/09,07/04,08/07 Gerd Kortemeyer
-# 02/15/02 Matthew Hall
+
+=head1 NAME
+
+Apache::lonmenu
+
+=head1 SYNOPSIS
+
+Loads contents of /home/httpd/lonTabs/mydesk.tab,
+used to generate inline menu, and Main Menu page.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 GLOBAL VARIABLES
+
+=over
+
+=item @desklines
+
+Each element of this array contains a line of mydesk.tab that doesn't start with
+cat, prim or scnd.
+It gets filled in the BEGIN block of this module.
+
+=item %category_names
+
+The keys of this hash are the abbreviations used in mydesk.tab in those lines that
+start with cat, the values are strings representing titles.
+It gets filled in the BEGIN block of this module.
+
+=item %category_members
+
+TODO
+
+=item %category_positions
+
+The keys of this hash are the abbreviations used in mydesk.tab in those lines that
+start with cat, its values are position vectors (column, row).
+It gets filled in the BEGIN block of this module.
+
+=item $readdesk
+
+Indicates that mydesk.tab has been read.
+It is set to 'done' in the BEGIN block of this module.
+
+=item @primary_menu
+
+The elements of this array reference arrays that are made up of the components
+of those lines of mydesk.tab that start with prim:.
+It is used by primary_menu() to generate the corresponding menu.
+It gets filled in the BEGIN block of this module.
+
+=item %primary_sub_menu
+
+The keys of this hash reference are the names of items in the primary_menu array
+which have sub-menus. For each key, the corresponding value is a reference to
+an array containing components extracted from lines in mydesk.tab which begin
+with primsub:.
+This hash, which is used by primary_menu to generate sub-menus, is populated in
+the BEGIN block.
+
+=item @secondary_menu
+
+The elements of this array reference arrays that are made up of the components
+of those lines of mydesk.tab that start with scnd.
+It is used by secondary_menu() to generate the corresponding menu.
+It gets filled in the BEGIN block of this module.
+
+=back
+
+=head1 SUBROUTINES
+
+=over
+
+=item prep_menuitems(\@menuitem)
+
+This routine wraps a menuitem in proper HTML. It is used by primary_menu() and
+secondary_menu().
+
+=item primary_menu()
+
+This routine evaluates @primary_menu and returns a two item array,
+with the array elements containing XHTML for the left and right sides of
+the menu that contains the following links: About, Message, Roles, Help, Logout
+@primary_menu is filled within the BEGIN block of this module with
+entries from mydesk.tab
+
+=item secondary_menu()
+
+Same as primary_menu() but operates on @secondary_menu.
+
+=item create_submenu()
+
+Creates XHTML for unordered list of sub-menu items which belong to a
+particular top-level menu item. Uses hover pseudo class in css to display
+dropdown list when mouse hovers over top-level item. Support for IE6
+(no hover psuedo class) via LC_hoverable class for
tag for top-
+level item, which employs jQuery to handle behavior on mouseover.
+
+Inputs: 6 - (a) link and (b) target for anchor href in top level item,
+ (c) title for text wrapped by anchor tag in top level item,
+ (d) reference to array of arrays of sub-menu items,
+ (e) boolean to indicate whether to call &mt() to translate
+ name of menu item,
+ (f) optional class for
element in primary menu, for which
+ sub menu is being generated.
+
+ The underlying datastructure used in (d) contains data from mydesk.tab.
+ It consists of an array which has an array for each item appearing in
+ the menu (e.g. [["link", "title", "condition"]] for a single-item menu).
+ create_submenu() supports also the creation of XHTML for nested dropdown
+ menus represented by unordered lists. This is done by replacing the
+ scalar used for the link with an arrayreference containing the menuitems
+ for the nested menu. This can be done recursively so that the next menu
+ may also contain nested submenus.
+
+ Example:
+ [ # begin of datastructure
+ ["/home/", "Home", "condition1"], # 1st item of the 1st layer menu
+ [ # 2nd item of the 1st layer menu
+ [ # anon. array for nested menu
+ ["/path1", "Path1", undef], # 1st item of the 2nd layer menu
+ ["/path2", "Path2", undef], # 2nd item of the 2nd layer menu
+ [ # 3rd item of the 2nd layer menu
+ [[...], [...], ..., [...]], # containing another menu layer
+ "Sub-Sub-Menu", # title for this container
+ undef
+ ]
+ ], # end of array/nested menu
+ "Sub-Menu", # title for the container item
+ undef
+ ] # end of 2nd item of the 1st layer menu
+]
+
+=item innerregister()
+
+This gets called in order to register a URL in the body of the document
+
+=item clear()
+
+=item switch()
+
+Switch a button or create a link
+Switch acts on the javascript that is executed when a button is clicked.
+The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
+
+=item secondlevel()
+
+=item openmenu()
+
+=item inlinemenu()
+
+=item rawconfig()
+
+=item utilityfunctions()
+
+Output from this routine is a number of javascript functions called by
+items in the inline menu, and in some cases items in the Main Menu page.
+
+=item serverform()
+
+=item constspaceform()
+
+=item get_nav_status()
+
+=item hidden_button_check()
+
+=item roles_selector()
+
+=item jump_to_role()
+
+=back
+
+=cut
package Apache::lonmenu;
use strict;
use Apache::lonnet;
-use Apache::Constants qw(:common);
-use Apache::loncommon;
-use Apache::File;
-use vars qw(@desklines $readdesk);
+use Apache::lonhtmlcommon();
+use Apache::loncommon();
+use Apache::lonenc();
+use Apache::lonlocal;
+use Apache::lonmsg();
+use LONCAPA qw(:DEFAULT :match);
+use HTML::Entities();
+use Apache::lonwishlist();
+
+use vars qw(@desklines %category_names %category_members %category_positions
+ $readdesk @primary_menu %primary_submenu @secondary_menu %secondary_submenu);
+
+my @inlineremote;
+
+sub prep_menuitem {
+ my ($menuitem) = @_;
+ return '' unless(ref($menuitem) eq 'ARRAY');
+ my $link;
+ if ($$menuitem[1]) { # graphical Link
+ $link = "";
+ } else { # textual Link
+ $link = &mt($$menuitem[3]);
+ }
+ return '
|;
+}
+
+# primary_menu() evaluates @primary_menu and returns a two item array,
+# with the array elements containing XHTML for the left and right sides of
+# the menu that contains the following links:
+# Personal, About, Message, Roles, Help, Logout
+# @primary_menu is filled within the BEGIN block of this module with
+# entries from mydesk.tab
+sub primary_menu {
+ my ($crstype) = @_;
+ my (%menu);
+ # each element of @primary contains following array:
+ # (link url, icon path, alt text, link text, condition, position)
+ my $public;
+ if ((($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public'))
+ || (($env{'user.name'} eq '') && ($env{'user.domain'} eq ''))) {
+ $public = 1;
+ }
+ my $rolecount;
+ if (($crstype eq 'Placement') && (!$env{'request.role.adv'})) {
+ my $update=$env{'user.update.time'};
+ if (!$update) {
+ $update = $env{'user.login.time'};
+ }
+ my %roles_in_env;
+ $rolecount = &Apache::lonroles::roles_from_env(\%roles_in_env,$update);
+ }
+ foreach my $menuitem (@primary_menu) {
+ # evaluate conditions
+ next if ref($menuitem) ne 'ARRAY'; #
+ next if $$menuitem[4] eq 'nonewmsg' # show links depending on
+ && &Apache::lonmsg::mynewmail(); # whether a new msg
+ next if $$menuitem[4] eq 'newmsg' # arrived or not
+ && !&Apache::lonmsg::mynewmail(); #
+ next if $$menuitem[4] !~ /public/ ##we've a public user,
+ && $public; ##who should not see all
+ ##links
+ next if $$menuitem[4] eq 'onlypublic'# hide links which are
+ && !$public; # only visible to public
+ # users
+ next if $$menuitem[4] eq 'roles' ##show links depending on
+ && &Apache::loncommon::show_course(); ##term 'Courses' or
+ next if $$menuitem[4] eq 'courses' ##'Roles' wanted
+ && !&Apache::loncommon::show_course(); ##
+ my $title = $menuitem->[3];
+ if (($crstype eq 'Placement') && (!$env{'request.role.adv'})) {
+ if ($menuitem->[4] eq 'courses') {
+ next unless ($rolecount>1);
+ } else {
+ next unless (($title eq 'Personal') || ($title eq 'Logout'));
+ }
+ }
+ my $position = $menuitem->[5];
+ if ($position eq '') {
+ $position = 'right';
+ }
+ if (defined($primary_submenu{$title})) {
+ my ($link,$target);
+ if ($menuitem->[0] ne '') {
+ $link = $menuitem->[0];
+ $target = '_top';
+ } else {
+ $link = '#';
+ }
+ my @primsub;
+ if (ref($primary_submenu{$title}) eq 'ARRAY') {
+ foreach my $item (@{$primary_submenu{$title}}) {
+ next if (($crstype eq 'Placement') && (!$env{'request.role.adv'}));
+ next if (($item->[2] eq 'wishlist') && (!$env{'user.adv'}));
+ next if ((($item->[2] eq 'portfolio') ||
+ ($item->[2] eq 'blog')) &&
+ (!&Apache::lonnet::usertools_access('','',$item->[2],
+ undef,'tools')));
+ push(@primsub,$item);
+ }
+ if ($title eq 'Personal' && $env{'user.name'} && $env{'user.domain'} ) {
+ $title = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
+ } else {
+ $title = &mt($title);
+ }
+ if (@primsub > 0) {
+ $menu{$position} .= &create_submenu($link,$target,$title,\@primsub,1);
+ } elsif ($link) {
+ $menu{$position} .= '
';
+ }
+ }
+ } elsif ($$menuitem[3] eq 'Help') { # special treatment for helplink
+ next if ($crstype eq 'Placement');
+ if ($public) {
+ my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
+ my $defdom = &Apache::lonnet::default_login_domain();
+ my $to = &Apache::loncommon::build_recipient_list(undef,
+ 'helpdeskmail',
+ $defdom,$origmail);
+ if ($to ne '') {
+ $menu{$position} .= &prep_menuitem($menuitem);
+ }
+ } else {
+ $menu{$position} .= '
'.&Apache::loncommon::top_nav_help('Help').'
';
+ }
+ } else {
+ $menu{$position} .= prep_menuitem($menuitem);
+ }
+ }
+ my @output = ('','');
+ if ($menu{'left'} ne '') {
+ $output[0] = "$menu{'left'}";
+ }
+ if ($menu{'right'} ne '') {
+ $output[1] = "$menu{'right'}";
+ }
+ return @output;
+}
-# ======================================================= Make the menu buttons
+#returns hashref {user=>'',dom=>''} containing:
+# own name, domain if user is au
+# name, domain of parent author if user is ca or aa
+#empty return if user is not an author or not on homeserver
+#
+#TODO this should probably be moved somewhere more central
+#since it can be used by different parts of the system
+sub getauthor{
+ return unless $env{'request.role'}=~/^(ca|aa|au)/; #nothing to do if user isn't some kind of author
+
+ #co- or assistent author?
+ my ($dom, $user) = ($env{'request.role'} =~ /^(?:ca|aa)\.\/($match_domain)\/($match_username)$/)
+ ? ($1, $2) #domain, username of the parent author
+ : @env{ ('request.role.domain', 'user.name') }; #own domain, username
+
+ # current server == home server?
+ my $home = &Apache::lonnet::homeserver($user,$dom);
+ foreach (&Apache::lonnet::current_machine_ids()){
+ return {user => $user, dom => $dom} if $_ eq $home;
+ }
-sub menubuttons {
- my $forcereg=shift;
- my $target =shift;
- unless ($ENV{'browser.interface'} eq 'textual') { return ''; }
- my $output='Main Menu ';
- return $output."";
+ # if wrong server
+ return;
}
-# ============================================== Register a URL with the remote
+sub secondary_menu {
+ my ($httphost) = @_;
+ my $menu;
+
+ my $crstype = &Apache::loncommon::course_type();
+ my $crs_sec = $env{'request.course.id'} . ($env{'request.course.sec'}
+ ? "/$env{'request.course.sec'}"
+ : '');
+ my $canedit = &Apache::lonnet::allowed('mdc', $env{'request.course.id'});
+ my $canvieweditor = &Apache::lonnet::allowed('cev', $env{'request.course.id'});
+ my $canviewroster = $env{'course.'.$env{'request.course.id'}.'.student_classlist_view'};
+ if ($canviewroster eq 'disabled') {
+ undef($canviewroster);
+ }
+ my $canviewgrps = &Apache::lonnet::allowed('vcg', $crs_sec);
+ my $canmodifyuser = &Apache::lonnet::allowed('cst', $crs_sec);
+ my $canviewusers = &Apache::lonnet::allowed('vcl', $crs_sec);
+ my $canviewwnew = &Apache::lonnet::allowed('whn', $crs_sec);
+ my $canviewpara = &Apache::lonnet::allowed('vpa', $crs_sec);
+ my $canmodpara = &Apache::lonnet::allowed('opa', $crs_sec);
+ my $canvgr = &Apache::lonnet::allowed('vgr', $crs_sec);
+ my $canmgr = &Apache::lonnet::allowed('mgr', $crs_sec);
+ my $author = &getauthor();
+
+ my ($cdom,$cnum,$showsyllabus,$showfeeds,$showresv,$grouptools);
+ $grouptools = 0;
+ if ($env{'request.course.id'}) {
+ $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+ $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+ unless ($canedit || $canvieweditor) {
+ unless (&Apache::lonnet::is_on_map("public/$cdom/$cnum/syllabus")) {
+ if (($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'}) ||
+ ($env{'course.'.$env{'request.course.id'}.'.uploadedsyllabus'}) ||
+ ($env{'course.'.$env{'request.course.id'}.'.updatedsyllabus'}) ||
+ ($env{'request.course.syllabustime'})) {
+ $showsyllabus = 1;
+ }
+ }
+ if ($env{'request.course.feeds'}) {
+ $showfeeds = 1;
+ }
+ }
+ unless ($canmgr || $canvgr) {
+ my %slots = &Apache::lonnet::get_course_slots($cnum,$cdom);
+ if (keys(%slots) > 0) {
+ $showresv = 1;
+ }
+ }
+ my %groups = &Apache::lonnet::get_active_groups(
+ $env{'user.domain'}, $env{'user.name'},$cdom,$cnum);
+ if (%groups) {
+ foreach my $group (keys(%groups)) {
+ my @privs = split(/:/,$env{"user.priv.$env{'request.role'}./$cdom/$cnum/$group"});
+ shift(@privs);
+ if (@privs) {
+ $grouptools ++;
+ }
+ }
+ }
+ }
+ my ($canmodifycoauthor);
+ if ($env{'request.role'} eq "au./$env{'user.domain'}/") {
+ my $extent = "$env{'user.domain'}/$env{'user.name'}";
+ if ((&Apache::lonnet::allowed('cca',$extent)) ||
+ (&Apache::lonnet::allowed('caa',$extent))) {
+ $canmodifycoauthor = 1;
+ }
+ }
+ my ($roleswitcher_js,$roleswitcher_form);
-sub registerurl {
- my $forcereg=shift;
- my $target = shift;
- my $result = '';
-
- if ($target eq 'edit') {
- $result .="\n";
- }
- if (($ENV{'browser.interface'} eq 'textual') ||
- ((($ENV{'request.publicaccess'}) ||
- (!&Apache::lonnet::is_on_map($ENV{'REQUEST_URI'}))) &&
- (!$forcereg))) {
- return $result.
- '';
- }
- if ($Apache::lonxml::registered && !$forcereg) { return ''; }
- $Apache::lonxml::registered=1;
- my $reopen=&Apache::lonmenu::reopenmenu();
- my $newmail='';
- if (&Apache::lonmsg::newmail()) {
- $newmail='swmenu.setstatus("you have","messages");';
- }
- my $timesync='swmenu.syncclock(1000*'.time.');';
- if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
- my $hwkadd='';
- if ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
- if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
- $hwkadd.=(<[3];
+ if (defined($secondary_submenu{$title})) {
+ my ($link,$target);
+ if ($menuitem->[0] ne '') {
+ $link = $menuitem->[0];
+ $target = '_top';
+ } else {
+ $link = '#';
}
- }
- ###
- ### Determine whether or not to display the 'cstr' button for this
- ### resource
- ###
- my $editbutton = '';
- if ($ENV{'user.author'}) {
- if ($ENV{'request.role'}=~/^(ca|au)/) {
- # Set defaults for authors
- my ($top,$bottom) = ('con-','struct');
- my $action = "go('/priv/".$ENV{'user.name'}."');";
- my $cadom = $ENV{'request.role.domain'};
- my $caname = $ENV{'user.name'};
- my $desc = "Enter my resource construction space";
- # Set defaults for co-authors
- if ($ENV{'request.role'} =~ /^ca/) {
- ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
- ($top,$bottom) = ('co con-','struct');
- $action = "go('/priv/".$caname."');";
- $desc = "Enter construction space as co-author";
- }
- # Check that we are on the correct machine
- my $home = &Apache::lonnet::homeserver($caname,$cadom);
- if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
- $editbutton=&Apache::lonmenu::switch
- ('','',6,1,$top,,$bottom,$action,$desc);
- }
- }
- ##
- ## Determine if user can edit url.
- ##
- my $cfile='';
- my $cfuname='';
- my $cfudom='';
- if ($ENV{'request.filename'}) {
- my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
- $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
- # Chech that the user has permission to edit this resource
- ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
- if (defined($cfudom)) {
- if (&Apache::lonnet::homeserver($cfuname,$cfudom)
- eq $Apache::lonnet::perlvar{'lonHostID'}) {
- $cfile=$file;
- }
- }
- }
- # Finally, turn the button on or off
- if ($cfile) {
- $editbutton=&Apache::lonmenu::switch
- ('','',6,1,'cstr.gif','edit','resource',
- "go('".$cfile."');","Edit this resource");
- } elsif ($editbutton eq '') {
- $editbutton = ' swmenu.clearbut(6,1);';
- }
- }
- ###
- ###
- $result = (<
-// BEGIN LON-CAPA Internal
-
- function LONCAPAreg() {
- swmenu=$reopen;
- swmenu.clearTimeout(swmenu.menucltim);
- $timesync
- $newmail
- swmenu.currentURL=window.location.pathname;
- swmenu.reloadURL=window.location.pathname;
- swmenu.currentSymb="$ENV{'request.symb'}";
- swmenu.reloadSymb="$ENV{'request.symb'}";
- swmenu.currentStale=0;
- swmenu.clearbut(3,1);
- swmenu.switchbutton
- (6,3,'catalog.gif','catalog','info','catalog_info()','Show catalog information');
- swmenu.switchbutton
- (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)','Provide my evaluation of this resource');
- swmenu.switchbutton
- (8,2,'fdbk.gif','feedback','discuss','gopost("/adm/feedback",currentURL)','Provide feedback messages or contribute to the course discussion about this resource');
- swmenu.switchbutton
- (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)','Prepare a printable document');
- swmenu.switchbutton
- (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)','Go to the previous resource in the course sequence');
- swmenu.switchbutton
- (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)','Go to the next resource in the course sequence');
- swmenu.switchbutton
- (9,1,'sbkm.gif','set','bookmark','set_bookmark()','Set a bookmark for this resource');
- swmenu.switchbutton
- (9,2,'vbkm.gif','view','bookmark','edit_bookmarks()','Use or edit my bookmark collection');
- swmenu.switchbutton
- (9,3,'anot.gif','anno-','tations','annotate()','Make notes and annotations about this resource');
- $hwkadd
- $editbutton
- }
-
- function LONCAPAstale() {
- swmenu=$reopen
- swmenu.currentStale=1;
- if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
- swmenu.switchbutton
- (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
- }
- swmenu.clearbut(7,1);
- swmenu.clearbut(7,2);
- swmenu.clearbut(7,3);
- swmenu.menucltim=swmenu.setTimeout(
- 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
- 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
- 2000);
+ my @scndsub;
+ if (ref($secondary_submenu{$title}) eq 'ARRAY') {
+ foreach my $item (@{$secondary_submenu{$title}}) {
+ if (ref($item) eq 'ARRAY') {
+ next if ($item->[2] eq 'vgr' && !$canvgr);
+ next if ($item->[2] eq 'opa' && !$canmodpara);
+ next if ($item->[2] eq 'vpa' && !$canviewpara);
+ next if ($item->[2] eq 'viewusers' && !($canmodifyuser || $canviewusers));
+ next if ($item->[2] eq 'mgr' && !$canmgr);
+ next if ($item->[2] eq 'vcg' && !$canviewgrps);
+ next if ($item->[2] eq 'crsedit' && !$canedit && !$canvieweditor);
+ next if ($item->[2] eq 'params' && !$canmodpara && !$canviewpara);
+ next if ($item->[2] eq 'author' && !$author);
+ next if ($item->[2] eq 'cca' && !$canmodifycoauthor);
+ push(@scndsub,$item);
+ }
+ }
+ if (@scndsub > 0) {
+ $menu .= &create_submenu($link,$target,$title,\@scndsub,1);
+ } elsif ($link ne '#') {
+ $menu .= '
';
+
+ # $link and $title are only used in the initial string written in $menu
+ # as seen above, not needed for nested submenus
+ $menu .= &build_submenu($target, $submenu, $translate, '1');
+ $menu .= '
';
+
+ return $menu;
+}
+
+# helper routine for create_submenu
+# build the dropdown (and nested submenus) recursively
+# see perldoc create_submenu documentation for further information
+sub build_submenu {
+ my ($target, $submenu, $translate, $first_level) = @_;
+ unless (@{$submenu}) {
+ return '';
+ }
-// END LON-CAPA Internal
-
-ENDREGTHIS
+ my $menu = '';
+ my $count = 0;
+ my $numsub = scalar(@{$submenu});
+ foreach my $item (@{$submenu}) {
+ $count ++;
+ if (ref($item) eq 'ARRAY') {
+ my $href = $item->[0];
+ my $bordertop;
+ my $borderbot;
+ my $title;
+
+ if ($translate) {
+ $title = &mt($item->[1]);
+ } else {
+ $title = $item->[1];
+ }
- } else {
- $result = (<
-// BEGIN LON-CAPA Internal
+ # href is a reference to another submenu
+ if (ref($href) eq 'ARRAY') {
+ $menu .= '